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[PATCH v4 04/15] vdpa: Negotiate _F_SUSPEND feature
From: |
Eugenio Pérez |
Subject: |
[PATCH v4 04/15] vdpa: Negotiate _F_SUSPEND feature |
Date: |
Fri, 24 Feb 2023 16:54:27 +0100 |
This is needed for qemu to know it can suspend the device to retrieve
its status and enable SVQ with it, so all the process is transparent to
the guest.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
hw/virtio/vhost-vdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index d9260191cc..4fac144169 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -659,7 +659,8 @@ static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
uint64_t features;
uint64_t f = 0x1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2 |
0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH |
- 0x1ULL << VHOST_BACKEND_F_IOTLB_ASID;
+ 0x1ULL << VHOST_BACKEND_F_IOTLB_ASID |
+ 0x1ULL << VHOST_BACKEND_F_SUSPEND;
int r;
if (vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, &features)) {
--
2.31.1
- [PATCH v4 00/15] Dynamically switch to vhost shadow virtqueues at vdpa net migration, Eugenio Pérez, 2023/02/24
- [PATCH v4 01/15] vdpa net: move iova tree creation from init to start, Eugenio Pérez, 2023/02/24
- [PATCH v4 02/15] vdpa: Remember last call fd set, Eugenio Pérez, 2023/02/24
- [PATCH v4 04/15] vdpa: Negotiate _F_SUSPEND feature,
Eugenio Pérez <=
- [PATCH v4 03/15] vdpa: stop svq at vhost_vdpa_dev_start(false), Eugenio Pérez, 2023/02/24
- [PATCH v4 05/15] vdpa: move vhost reset after get vring base, Eugenio Pérez, 2023/02/24
- [PATCH v4 09/15] vdpa: add vdpa net migration state notifier, Eugenio Pérez, 2023/02/24
- [PATCH v4 14/15] vdpa net: allow VHOST_F_LOG_ALL, Eugenio Pérez, 2023/02/24
- [PATCH v4 06/15] vdpa: add vhost_vdpa->suspended parameter, Eugenio Pérez, 2023/02/24
- [PATCH v4 07/15] vdpa: add vhost_vdpa_suspend, Eugenio Pérez, 2023/02/24